This page provides information about the usage of the Allow a content type only once (Only One) project, including summaries across all versions and details for each release. For each week beginning on the given date the figures show the number of sites that reported they are using a given version of the project.

Allow a content type only once (Only One) project page
Usage statistics for all projects

Hide legacy data
Week starting 7.x-1.x 8.x-1.x 2.x 2.0.x Total
June 14th, 2026 13 168 0 2751 2932
June 7th, 2026 13 172 0 2692 2877
May 31st, 2026 11 186 0 2750 2947
May 24th, 2026 11 186 0 2758 2955
May 17th, 2026 12 190 0 2351 2553
May 10th, 2026 10 180 0 1914 2104
May 3rd, 2026 12 174 0 2651 2837
April 26th, 2026 11 183 0 2411 2605
April 19th, 2026 10 176 0 2779 2965
April 12th, 2026 10 194 0 2433 2637
April 5th, 2026 10 188 0 2752 2950
March 29th, 2026 11 177 0 2209 2397
March 22nd, 2026 11 186 0 1707 1904
March 15th, 2026 9 184 0 2232 2425
March 8th, 2026 10 191 0 2765 2966
February 22nd, 2026 9 199 0 1640 1848
February 15th, 2026 12 196 0 2215 2423
February 8th, 2026 10 178 0 2773 2961
February 1st, 2026 12 196 0 2907 3115
January 25th, 2026 11 189 0 2333 2533
January 18th, 2026 11 181 0 2770 2962
January 11th, 2026 13 190 0 1734 1937
January 4th, 2026 13 187 0 2642 2842
December 28th, 2025 12 177 0 1552 1741
December 21st, 2025 13 182 0 1616 1811
December 14th, 2025 12 191 0 2279 2482
December 7th, 2025 13 193 0 1806 2012
November 30th, 2025 13 195 0 2755 2963
November 23rd, 2025 13 193 0 1869 2075
November 16th, 2025 15 186 0 2991 3192
November 9th, 2025 16 203 0 3135 3354
November 2nd, 2025 16 162 0 2766 2944
October 26th, 2025 16 169 0 2242 2427
October 19th, 2025 15 160 0 2048 2223
October 12th, 2025 17 176 0 2914 3107
October 5th, 2025 16 174 0 3176 3366
September 28th, 2025 17 167 0 3079 3263
September 21st, 2025 16 174 0 3015 3205
September 14th, 2025 16 166 0 2357 2539
September 7th, 2025 16 207 0 3108 3331
August 31st, 2025 20 208 0 2698 2926
August 24th, 2025 18 218 0 2711 2947
August 17th, 2025 16 206 0 3004 3226
August 10th, 2025 17 219 0 1685 1921
August 3rd, 2025 18 216 0 3102 3336
July 27th, 2025 26 220 0 2329 2575
July 20th, 2025 25 225 0 2423 2673
July 13th, 2025 24 216 0 2814 3054
July 6th, 2025 19 232 0 2295 2546
June 29th, 2025 25 248 0 1984 2257
June 22nd, 2025 21 235 0 2578 2834
June 15th, 2025 24 204 0 2071 2299
June 8th, 2025 24 200 0 1594 1818
June 1st, 2025 23 206 0 2651 2880
May 25th, 2025 26 202 0 2021 2249
May 18th, 2025 26 198 1 1922 2147
May 11th, 2025 25 202 2 2543 2772
May 4th, 2025 21 206 3 1623 1853
April 27th, 2025 25 202 4 1590 1821
April 20th, 2025 26 209 4 1876 2115
April 13th, 2025 26 213 4 2306 2549
April 6th, 2025 29 208 5 2833 3075
March 30th, 2025 25 216 5 2194 2440
March 23rd, 2025 28 201 6 1875 2110
March 16th, 2025 27 215 9 1633 1884
March 9th, 2025 26 214 9 2574 2823
March 2nd, 2025 23 212 10 1913 2158
February 23rd, 2025 31 216 14 2045 2306
February 16th, 2025 30 209 17 1964 2220
February 9th, 2025 30 207 18 1625 1880
February 2nd, 2025 31 215 15 1520 1781
January 26th, 2025 34 219 11 2361 2625
January 19th, 2025 31 222 11 1728 1992
January 12th, 2025 33 220 11 1806 2070
January 5th, 2025 35 238 14 1474 1761
December 29th, 2024 32 206 13 1181 1432
December 22nd, 2024 33 204 12 1221 1470
December 15th, 2024 31 227 13 1444 1715
December 8th, 2024 33 242 15 2094 2384
December 1st, 2024 30 240 15 2400 2685
November 24th, 2024 33 239 15 1327 1614
November 17th, 2024 31 244 16 1599 1890
November 10th, 2024 29 237 16 2259 2541
November 3rd, 2024 29 237 10 2000 2276
October 27th, 2024 35 239 13 1700 1987
October 20th, 2024 34 248 14 1807 2103
October 13th, 2024 34 252 12 1889 2187
October 6th, 2024 35 244 15 1504 1798
September 29th, 2024 37 261 11 1585 1894
September 22nd, 2024 38 250 9 1621 1918
September 15th, 2024 36 262 12 1813 2123
September 8th, 2024 33 240 12 2023 2308
September 1st, 2024 38 258 9 1373 1678
August 25th, 2024 34 259 10 2052 2355
August 18th, 2024 34 235 11 1549 1829
August 11th, 2024 37 233 9 1375 1654
August 4th, 2024 38 253 10 1746 2047
July 28th, 2024 41 249 11 1628 1929
July 21st, 2024 35 258 10 1551 1854
July 14th, 2024 35 252 10 1257 1554
July 7th, 2024 27 209 6 1389 1631
June 30th, 2024 40 293 7 1630 1970
June 23rd, 2024 40 265 9 1628 1942
June 16th, 2024 41 271 9 1624 1945
June 9th, 2024 44 263 7 1200 1514
June 2nd, 2024 42 262 6 1555 1865
May 26th, 2024 47 259 7 1482 1795
May 19th, 2024 36 253 7 1854 2150
May 12th, 2024 43 278 8 1432 1761
May 5th, 2024 36 267 7 1322 1632
April 28th, 2024 43 279 6 1590 1918
April 21st, 2024 43 355 8 1680 2086
April 14th, 2024 46 363 7 1369 1785
April 7th, 2024 48 386 6 1289 1729
March 31st, 2024 47 403 6 1272 1728
March 24th, 2024 42 406 5 1051 1504
March 17th, 2024 46 373 4 1273 1696
March 10th, 2024 43 351 3 1045 1442
March 3rd, 2024 42 375 4 1046 1467
February 25th, 2024 44 428 5 1085 1562
February 18th, 2024 47 421 4 981 1453
February 11th, 2024 45 439 4 958 1446
February 4th, 2024 46 423 4 1097 1570
January 28th, 2024 50 408 4 1394 1856
January 21st, 2024 50 453 4 1243 1750
January 14th, 2024 46 451 2 917 1416
January 7th, 2024 46 484 2 1059 1591
December 31st, 2023 46 442 2 981 1471
December 24th, 2023 48 410 2 673 1133
December 17th, 2023 47 446 2 1154 1649
December 10th, 2023 45 535 2 1176 1758
December 3rd, 2023 50 550 1 999 1600
November 26th, 2023 47 515 0 1102 1664
November 19th, 2023 46 542 0 1004 1592
November 12th, 2023 45 583 0 1042 1670
November 5th, 2023 49 616 0 993 1658
October 29th, 2023 48 556 0 1336 1940
October 22nd, 2023 49 561 0 1111 1721
October 15th, 2023 45 522 0 1101 1668
October 8th, 2023 47 606 0 793 1446
October 1st, 2023 50 584 0 962 1596
September 24th, 2023 51 673 0 921 1645
September 17th, 2023 44 719 0 753 1516
September 10th, 2023 47 730 0 576 1353
September 3rd, 2023 48 674 0 612 1334
August 27th, 2023 48 734 0 604 1386
August 20th, 2023 44 652 0 423 1119
August 13th, 2023 45 640 0 410 1095
August 6th, 2023 49 763 0 481 1293
July 30th, 2023 48 642 0 462 1152
July 23rd, 2023 43 662 0 485 1190
July 16th, 2023 47 686 0 452 1185
July 9th, 2023 48 708 0 499 1255
July 2nd, 2023 53 738 0 307 1098
June 25th, 2023 52 769 0 291 1112
June 18th, 2023 52 790 0 272 1114
June 11th, 2023 52 798 0 270 1120
June 4th, 2023 54 787 0 262 1103
May 28th, 2023 60 802 0 229 1091
May 21st, 2023 59 822 0 206 1087
May 14th, 2023 54 884 0 211 1149
May 7th, 2023 54 921 0 182 1157
April 30th, 2023 54 983 0 130 1167
April 23rd, 2023 57 1036 0 70 1163
April 16th, 2023 60 1044 0 0 1104
April 9th, 2023 48 969 0 0 1017
April 2nd, 2023 58 979 0 0 1037
March 26th, 2023 54 977 0 0 1031
March 19th, 2023 60 962 0 0 1022
March 12th, 2023 60 946 0 0 1006
March 5th, 2023 57 967 0 0 1024
February 26th, 2023 58 941 0 0 999
February 19th, 2023 54 912 0 0 966
February 12th, 2023 54 934 0 0 988
February 5th, 2023 57 990 0 0 1047
January 29th, 2023 60 978 0 0 1038
January 22nd, 2023 51 950 0 0 1001
January 15th, 2023 53 983 0 0 1036
January 8th, 2023 61 962 0 0 1023
January 1st, 2023 61 951 0 0 1012
December 25th, 2022 59 805 0 0 864
December 18th, 2022 63 923 0 0 986
December 11th, 2022 60 997 0 0 1057
December 4th, 2022 59 1001 0 0 1060
November 27th, 2022 60 1029 0 0 1089
November 20th, 2022 62 994 0 0 1056
November 13th, 2022 62 991 0 0 1053
November 6th, 2022 54 982 0 0 1036
October 30th, 2022 58 941 0 0 999
October 23rd, 2022 54 947 0 0 1001
October 16th, 2022 63 993 0 0 1056
October 9th, 2022 61 979 0 0 1040
October 2nd, 2022 68 1000 0 0 1068
September 25th, 2022 64 986 0 0 1050
September 18th, 2022 67 971 0 0 1038
September 11th, 2022 60 900 0 0 960
September 4th, 2022 59 925 0 0 984
August 28th, 2022 62 946 0 0 1008
August 21st, 2022 55 948 0 0 1003
August 14th, 2022 60 888 0 0 948
August 7th, 2022 66 1009 0 0 1075
July 31st, 2022 66 986 0 0 1052
July 24th, 2022 63 961 0 0 1024
July 17th, 2022 60 998 0 0 1058
July 10th, 2022 61 946 0 0 1007
July 3rd, 2022 58 980 0 0 1038
June 26th, 2022 57 949 0 0 1006
June 19th, 2022 55 927 0 0 982
June 12th, 2022 54 983 0 0 1037
June 5th, 2022 53 935 0 0 988
May 29th, 2022 56 958 0 0 1014
May 22nd, 2022 57 956 0 0 1013
May 15th, 2022 54 931 0 0 985
May 8th, 2022 60 942 0 0 1002
May 1st, 2022 63 937 0 0 1000
April 24th, 2022 63 1015 0 0 1078
April 17th, 2022 61 967 0 0 1028
April 10th, 2022 60 960 0 0 1020
April 3rd, 2022 60 1025 0 0 1085
March 27th, 2022 60 985 0 0 1045
March 20th, 2022 61 983 0 0 1044
March 13th, 2022 64 979 0 0 1043
March 6th, 2022 62 1001 0 0 1063
February 27th, 2022 58 923 0 0 981
February 20th, 2022 69 993 0 0 1062
February 13th, 2022 72 939 0 0 1011
February 6th, 2022 65 887 0 0 952
January 30th, 2022 68 867 0 0 935
January 23rd, 2022 68 919 0 0 987
January 16th, 2022 71 902 0 0 973
January 9th, 2022 66 893 0 0 959
January 2nd, 2022 68 849 0 0 917
December 26th, 2021 67 701 0 0 768
December 19th, 2021 66 786 0 0 852
December 12th, 2021 66 883 0 0 949
December 5th, 2021 70 907 0 0 977
November 28th, 2021 73 889 0 0 962
November 21st, 2021 61 891 0 0 952
November 14th, 2021 66 851 0 0 917
November 7th, 2021 71 854 0 0 925
October 31st, 2021 70 865 0 0 935
October 24th, 2021 68 859 0 0 927
October 17th, 2021 68 840 0 0 908
October 10th, 2021 69 828 0 0 897
October 3rd, 2021 73 813 0 0 886
September 26th, 2021 66 806 0 0 872
September 19th, 2021 76 757 0 0 833
September 12th, 2021 74 757 0 0 831
September 5th, 2021 74 716 0 0 790
August 29th, 2021 66 697 0 0 763
August 22nd, 2021 68 697 0 0 765
August 15th, 2021 61 692 0 0 753
August 8th, 2021 63 701 0 0 764
August 1st, 2021 69 709 0 0 778
July 25th, 2021 66 736 0 0 802
July 18th, 2021 67 698 0 0 765
July 11th, 2021 64 744 0 0 808
July 4th, 2021 69 742 0 0 811
June 27th, 2021 64 793 0 0 857
June 20th, 2021 62 695 0 0 757
June 13th, 2021 62 756 0 0 818
June 6th, 2021 62 715 0 0 777
May 30th, 2021 66 731 0 0 797
May 23rd, 2021 63 722 0 0 785
May 16th, 2021 67 726 0 0 793
May 9th, 2021 63 650 0 0 713
May 2nd, 2021 71 691 0 0 762
April 25th, 2021 73 587 0 0 660
April 18th, 2021 68 643 0 0 711
April 11th, 2021 65 676 0 0 741
April 4th, 2021 59 757 0 0 816
March 28th, 2021 70 751 0 0 821
March 21st, 2021 64 804 0 0 868
March 14th, 2021 78 681 0 0 759
March 7th, 2021 77 687 0 0 764
February 28th, 2021 69 678 0 0 747
February 21st, 2021 73 648 0 0 721
February 14th, 2021 72 571 0 0 643
February 7th, 2021 77 589 0 0 666
January 31st, 2021 77 554 0 0 631
January 24th, 2021 82 570 0 0 652
January 17th, 2021 66 592 0 0 658
January 10th, 2021 70 614 0 0 684
January 3rd, 2021 85 572 0 0 657
December 27th, 2020 59 435 0 0 494
December 20th, 2020 68 503 0 0 571
December 13th, 2020 70 606 0 0 676
December 6th, 2020 72 564 0 0 636
November 29th, 2020 75 549 0 0 624
November 22nd, 2020 74 563 0 0 637
November 15th, 2020 68 564 0 0 632
November 8th, 2020 62 525 0 0 587
November 1st, 2020 69 520 0 0 589
October 25th, 2020 67 503 0 0 570
October 18th, 2020 62 512 0 0 574
October 11th, 2020 68 538 0 0 606
October 4th, 2020 70 633 0 0 703
September 27th, 2020 66 689 0 0 755
September 20th, 2020 63 666 0 0 729
September 13th, 2020 60 647 0 0 707
September 6th, 2020 63 604 0 0 667
August 30th, 2020 65 598 0 0 663
August 23rd, 2020 66 551 0 0 617
August 16th, 2020 69 509 0 0 578
August 9th, 2020 62 561 0 0 623
August 2nd, 2020 61 560 0 0 621
July 26th, 2020 60 569 0 0 629
July 19th, 2020 55 535 0 0 590
July 12th, 2020 56 484 0 0 540
July 5th, 2020 59 501 0 0 560
June 28th, 2020 62 485 0 0 547
June 21st, 2020 69 535 0 0 604
June 14th, 2020 59 513 0 0 572
June 7th, 2020 64 510 0 0 574
May 31st, 2020 61 474 0 0 535
May 24th, 2020 58 440 0 0 498
May 17th, 2020 59 443 0 0 502
May 10th, 2020 62 460 0 0 522
May 3rd, 2020 62 437 0 0 499
April 26th, 2020 58 447 0 0 505
April 19th, 2020 61 453 0 0 514
April 12th, 2020 59 432 0 0 491
April 5th, 2020 59 440 0 0 499
March 29th, 2020 67 494 0 0 561
March 22nd, 2020 65 463 0 0 528
March 15th, 2020 72 448 0 0 520
March 8th, 2020 67 447 0 0 514
March 1st, 2020 63 449 0 0 512
February 23rd, 2020 64 459 0 0 523
February 16th, 2020 73 410 0 0 483
February 9th, 2020 68 410 0 0 478
February 2nd, 2020 68 414 0 0 482
January 26th, 2020 68 374 0 0 442
January 19th, 2020 71 387 0 0 458
January 12th, 2020 71 378 0 0 449
January 5th, 2020 66 351 0 0 417
December 29th, 2019 70 325 0 0 395
December 22nd, 2019 63 287 0 0 350
December 15th, 2019 64 357 0 0 421
December 8th, 2019 65 340 0 0 405
December 1st, 2019 58 345 0 0 403
November 24th, 2019 70 353 0 0 423
November 17th, 2019 62 337 0 0 399
November 10th, 2019 67 324 0 0 391
November 3rd, 2019 64 319 0 0 383
October 27th, 2019 64 314 0 0 378
October 20th, 2019 70 334 0 0 404
October 13th, 2019 73 300 0 0 373
October 6th, 2019 68 291 0 0 359
September 29th, 2019 63 323 0 0 386
September 22nd, 2019 67 348 0 0 415
September 15th, 2019 56 260 0 0 316
September 8th, 2019 69 273 0 0 342
September 1st, 2019 63 245 0 0 308
August 25th, 2019 68 252 0 0 320
August 18th, 2019 69 234 0 0 303
August 11th, 2019 62 236 0 0 298
August 4th, 2019 64 257 0 0 321
July 28th, 2019 67 226 0 0 293
July 21st, 2019 65 211 0 0 276
July 14th, 2019 76 260 0 0 336
July 7th, 2019 74 337 0 0 411
June 30th, 2019 63 331 0 0 394
June 23rd, 2019 66 299 0 0 365
June 16th, 2019 60 262 0 0 322
June 9th, 2019 64 257 0 0 321
June 2nd, 2019 72 240 0 0 312
May 26th, 2019 72 224 0 0 296
May 19th, 2019 78 250 0 0 328
May 12th, 2019 68 229 0 0 297
May 5th, 2019 70 223 0 0 293
April 28th, 2019 59 197 0 0 256
April 21st, 2019 64 163 0 0 227
April 14th, 2019 64 240 0 0 304
April 7th, 2019 63 194 0 0 257
March 31st, 2019 66 254 0 0 320
March 24th, 2019 61 321 0 0 382
March 17th, 2019 60 278 0 0 338
March 10th, 2019 57 212 0 0 269
March 3rd, 2019 61 205 0 0 266
February 24th, 2019 66 247 0 0 313
February 17th, 2019 62 226 0 0 288
February 10th, 2019 63 202 0 0 265
February 3rd, 2019 52 242 0 0 294
January 27th, 2019 56 288 0 0 344
January 20th, 2019 59 193 0 0 252
January 13th, 2019 60 261 0 0 321
January 6th, 2019 54 297 0 0 351
December 30th, 2018 59 288 0 0 347
December 23rd, 2018 47 177 0 0 224
December 16th, 2018 54 389 0 0 443
December 9th, 2018 51 178 0 0 229
December 2nd, 2018 49 154 0 0 203
November 25th, 2018 61 144 0 0 205
November 18th, 2018 62 121 0 0 183
November 11th, 2018 58 148 0 0 206
November 4th, 2018 49 148 0 0 197
October 28th, 2018 48 173 0 0 221
October 21st, 2018 61 187 0 0 248
October 14th, 2018 56 183 0 0 239
October 7th, 2018 55 200 0 0 255
September 30th, 2018 56 185 0 0 241
September 23rd, 2018 54 170 0 0 224
September 16th, 2018 60 144 0 0 204
September 9th, 2018 59 158 0 0 217
September 2nd, 2018 54 147 0 0 201
August 26th, 2018 52 180 0 0 232
August 19th, 2018 50 216 0 0 266
August 12th, 2018 52 256 0 0 308
August 5th, 2018 53 346 0 0 399
July 29th, 2018 54 255 0 0 309
July 22nd, 2018 55 296 0 0 351
July 15th, 2018 54 246 0 0 300
July 8th, 2018 54 189 0 0 243
July 1st, 2018 50 70 0 0 120
June 24th, 2018 66 108 0 0 174
June 17th, 2018 54 75 0 0 129
June 10th, 2018 54 69 0 0 123
June 3rd, 2018 48 66 0 0 114
May 27th, 2018 51 77 0 0 128
May 20th, 2018 48 77 0 0 125
May 13th, 2018 45 68 0 0 113
May 6th, 2018 45 65 0 0 110
April 29th, 2018 42 62 0 0 104
April 22nd, 2018 53 71 0 0 124
April 15th, 2018 45 72 0 0 117
April 8th, 2018 38 80 0 0 118
April 1st, 2018 45 92 0 0 137
March 25th, 2018 60 80 0 0 140
March 18th, 2018 48 70 0 0 118
March 11th, 2018 50 68 0 0 118
March 4th, 2018 51 100 0 0 151
February 25th, 2018 51 76 0 0 127
February 18th, 2018 49 88 0 0 137
February 11th, 2018 52 52 0 0 104
February 4th, 2018 44 100 0 0 144
January 28th, 2018 29 184 0 0 213
January 21st, 2018 25 147 0 0 172
January 14th, 2018 24 142 0 0 166
January 7th, 2018 28 56 0 0 84
December 31st, 2017 29 65 0 0 94
December 24th, 2017 30 46 0 0 76
December 17th, 2017 28 72 0 0 100
December 10th, 2017 26 65 0 0 91
December 3rd, 2017 32 55 0 0 87
November 26th, 2017 26 41 0 0 67
November 19th, 2017 27 37 0 0 64
November 12th, 2017 31 37 0 0 68
November 5th, 2017 21 31 0 0 52
October 29th, 2017 24 32 0 0 56
October 22nd, 2017 27 40 0 0 67
October 15th, 2017 15 35 0 0 50
October 8th, 2017 18 36 0 0 54
October 1st, 2017 20 39 0 0 59
September 24th, 2017 21 32 0 0 53
September 17th, 2017 28 47 0 0 75
September 10th, 2017 27 35 0 0 62
September 3rd, 2017 24 24 0 0 48
August 27th, 2017 35 25 0 0 60
August 20th, 2017 34 27 0 0 61
August 13th, 2017 19 13 0 0 32
August 6th, 2017 18 18 0 0 36
July 30th, 2017 15 14 0 0 29
July 23rd, 2017 18 17 0 0 35
July 16th, 2017 15 12 0 0 27
July 9th, 2017 13 15 0 0 28
July 2nd, 2017 4 17 0 0 21
June 25th, 2017 2 22 0 0 24
June 18th, 2017 3 13 0 0 16
June 11th, 2017 3 25 0 0 28
June 4th, 2017 2 18 0 0 20
May 28th, 2017 2 38 0 0 40
May 21st, 2017 2 6 0 0 8
May 14th, 2017 2 2 0 0 4
May 7th, 2017 1 1 0 0 2
April 30th, 2017 3 0 0 0 3
April 23rd, 2017 2 0 0 0 2

Recent release usage

Release June 14th, 2026 June 7th, 2026 May 31st, 2026 May 24th, 2026 May 17th, 2026 May 10th, 2026
7.x-1.10 2 3 1 2 3 1
7.x-1.11 1 1 1 1 1 1
7.x-1.13 2 2 2 2 2 2
7.x-1.14 8 7 7 6 6 6
8.x-1.7 1 1 1 1 1 2
8.x-1.8 6 7 8 8 9 9
8.x-1.9 0 0 1 0 1 0
8.x-1.10 161 164 176 177 179 169
2.0.0 144 144 157 168 172 170
2.0.1 2607 2548 2593 2590 2179 1744

Only Drupal websites using the Update Status module are included in the data. Read more information about how these statistics are calculated.